Interlock Castell Function: Terminal Block X1 - ABB Conceptpower DPA 500 Operating Manual

7.3 Interlock castell function: Terminal block X1

This function allows a secure transfer from inverter (normal operation) to external maintenance bypass
and vice-versa. During normal operation the external bypass is locked in position OFF. Only when the
UPS is/are transferred to static bypass mode, the lock on the external bypass is released and it possible
to switch to position ON. The transfer from maintenance bypass back to normal operation happens
exactly the other way around. The release signal is 230VAC when the maintenance bypass is free and
0V when locked.
Line2 - Bypass
Line1 - Rectifier
UPS
P01
~
=
=
~
Customer
interface
Modifications reserved
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UPS
P02
~
=
=
~
X3
X3
Customer
interface
Load
UPS
P03
MBS
~
=
Auxiliary
contacts
=
~
X3
X1
Customer
interface
Output isolator
Lock 2
Solenoid 2
Lock 1
Key 1
Solenoid 1
Key 2